Public Class LayoutChangedArgs 
   Inherits System.EventArgs

public class LayoutChangedArgs : System.EventArgs 

// ardMain_LayoutChanged - runs when a control/section in the layout is added/deleted/moved

private void ardMain_LayoutChanged(object sender, GrapeCity.ActiveReports.Design.LayoutChangedArgs e)
{
    if(e.Type == GrapeCity.ActiveReports.Design.LayoutChangeType.ControlAdd)  //Control Added
    {
        this._controlAdded = true;
        ResetToolbox();
        tbToolbox.Buttons[0].Pushed = true;
    }
    else
    {
        this._controlAdded = false;
    }
            
    if(e.Type == GrapeCity.ActiveReports.Design.LayoutChangeType.ControlDelete)  //Control Deleted
    {
        this._controlDeleted = true;
    }
    else
    {
        this._controlDeleted = false;
    }

    if(e.Type == GrapeCity.ActiveReports.Design.LayoutChangeType.SectionAdd)  //Section Added
    {
        this._sectionAdded = true;
    }
    else
    {
        this._sectionAdded = false;
    }

    if(e.Type == GrapeCity.ActiveReports.Design.LayoutChangeType.SectionDelete)  //Section Deleted
    {
        this._sectionDeleted = true;
    }
    else
    {
        this._sectionDeleted = false;
    }
}

'ardMain_LayoutChanged - runs when a control/section in the layout is added/deleted/moved
Private Sub ardMain_LayoutChanged(ByVal sender As Object, ByVal e As GrapeCity.ActiveReports.Design.LayoutChangedArgs) Handles ardMain.LayoutChanged
    If e.Type = GrapeCity.ActiveReports.Design.LayoutChangeType.ControlAdd Then 'Control Added
        Me._controlAdded = True
        ResetToolbox()
        tbToolbox.Buttons(0).Pushed = True
    Else
        Me._controlAdded = False
    End If

    If e.Type = GrapeCity.ActiveReports.Design.LayoutChangeType.ControlDelete Then 'Control Deleted
        Me._controlDeleted = True
    Else
        Me._controlDeleted = False
    End If

    If e.Type = GrapeCity.ActiveReports.Design.LayoutChangeType.SectionAdd Then 'Section Added
        Me._sectionAdded = True
    Else
        Me._sectionAdded = False
    End If

    If e.Type = GrapeCity.ActiveReports.Design.LayoutChangeType.SectionDelete Then 'Section Deleted
        Me._sectionDeleted = True
    Else
        Me._sectionDeleted = False
    End If
End Sub 'ardMain_LayoutChanged